Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why ...

They can even live up to 20 years in excellent conditions. Adult goldfish can be fed once a day. They eat both pelleted and flake food. Their diet can be enriched with additional items like live ...

We’ve already told you to consider eating more marsh rodents for the sake of the environment. Now, we’re begging you to stop releasing pet goldfish into local waterways. The seemingly benign ...

Instead, they created an invasive problem that can last decades." The issue is that goldfish start eating and take away resources from native species while muddying up the water, officials said.